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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2021-09-24 08:38:00 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2021-09-29 10:45:19 +0200 |
| commit | 62437f90cf90d1a0fda855f17ca6d9e7c0204f92 (patch) | |
| tree | 5c302807e80c1fd2d169f8e48dccdf416e47c745 /include/hw/nubus/nubus.h | |
| parent | 3616f424c911f1b52629cea1fec6ef99e9da07ad (diff) | |
| download | focaccia-qemu-62437f90cf90d1a0fda855f17ca6d9e7c0204f92.tar.gz focaccia-qemu-62437f90cf90d1a0fda855f17ca6d9e7c0204f92.zip | |
nubus: move nubus to its own 32-bit address space
According to "Designing Cards and Drivers for the Macintosh Family" the Nubus has its own 32-bit address space based upon physical slot addressing. Move Nubus to its own 32-bit address space and then use memory region aliases to map available slot and super slot ranges into the q800 system address space via the Macintosh Nubus bridge. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210924073808.1041-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'include/hw/nubus/nubus.h')
| -rw-r--r-- | include/hw/nubus/nubus.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/hw/nubus/nubus.h b/include/hw/nubus/nubus.h index 343be95841..9f9386afed 100644 --- a/include/hw/nubus/nubus.h +++ b/include/hw/nubus/nubus.h @@ -17,6 +17,9 @@ #define NUBUS_SUPER_SLOT_SIZE 0x10000000U #define NUBUS_SUPER_SLOT_NB 0xe +#define NUBUS_SLOT_BASE (NUBUS_SUPER_SLOT_SIZE * \ + (NUBUS_SUPER_SLOT_NB + 1)) + #define NUBUS_SLOT_SIZE 0x01000000 #define NUBUS_FIRST_SLOT 0x0 #define NUBUS_LAST_SLOT 0xf @@ -33,6 +36,9 @@ OBJECT_DECLARE_SIMPLE_TYPE(NubusBus, NUBUS_BUS) struct NubusBus { BusState qbus; + AddressSpace nubus_as; + MemoryRegion nubus_mr; + MemoryRegion super_slot_io; MemoryRegion slot_io; |